HALFTONE SCREENS ASSOCIATED WITH MOIRÉ EFFECTS BELOW A THRESHOLD
In an example, a method includes determining, using a processor, a set of halftone screens each comprising tiles spanning a plurality of cells, wherein at least one screen is a non-orthogonal screen and the cells comprise parallelograms being defined by a first vector having a first length and secon...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
14.11.2019
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Subjects | |
Online Access | Get full text |
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Summary: | In an example, a method includes determining, using a processor, a set of halftone screens each comprising tiles spanning a plurality of cells, wherein at least one screen is a non-orthogonal screen and the cells comprise parallelograms being defined by a first vector having a first length and second vector having a second length. A first and a second fundamental frequency may be determined for each of the screens using a projection of the first and of the second vector into each axis of a print apparatus reference frame, the first length and the second length. Using the first and second fundamental frequencies, it may be determined which screens are associated with moiré effects below a threshold. |
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Bibliography: | Application Number: US201716465299 |